Schedule: a typical summer Monday (the flights of Jul 27, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.
DELTA · FLIGHT DL 1434
SCHEDULED · TYPICAL SCHEDULE
Monday, October 5
DL 1434 · LAX → SLC
departs 9:55 AM PT · arrives 12:45 PM MT
Forecast issued Fri 11:00 PM ET · 62h before departure
Watch this flight
Other days
Today 12%
Sun 10/4 14%
Mon 10/5
Tue 10/6 10%
Wed 10/7 9%
Thu 10/8 12%
Fri 10/9 14%
Odds over time
Arrive at SLC more than 15 minutes late?
11%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
11%
Leave 15+ late
11%
Arrive 1h+ late
4%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
5%
10%
15%
20%
6.5d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SLC more than 15 minutes late?
Calm-weather odds: 9% · changed – in 24h
–
11%
Yes 11%
No 89%
Leave LAX more than 15 minutes late?
Calm-weather odds: 10% · changed – in 24h
–
11%
Yes 11%
No 89%
Arrive at SLC more than an hour late?
Calm-weather odds: 3% · changed – in 24h
–
4%
Yes 4%
No 96%
Cancelled?
Calm-weather odds: <1% · changed – in 24h
–
<1%
Yes <1%
No 99%
How late will it get to SLC?
On time or early
88%
15–30 min late
4%
30 min–1 hour late
3%
1–2 hours late
3%
Over 2 hours late
<1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Other factors
↑
LAX is prone to delays
↑
LAX is busy at that time
↓
Mondays in October are usually quieter than average
↓
Mostly benign weather forecast at LAX
Weather at each end
LAX (origin)
Gusts 17 kt Ceiling none (clear) Visibility 10+ mi Precip none
SLC (destination)
Gusts 14 kt Ceiling none (clear) Visibility 10+ mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.